Which convention is used in ICD-9 and ICD-10 to indicate that an entry is not classified as part of the preceding code?

The union of gametes produces a zygote

Indicate whether the statement is true or false

Cancer patients who receive chemotherapy and/or radiation can experience which of the following?

A) Oral irritation or ulcers B) Rampant decay C) Loss of salivary function D) All of the above